With all the people streaming games on Twitch or uploading whole playthroughs on youtube, you can make yourself a good picture how the game plays like, even if there is no demo version available. Since this game got financed with the help of Kickstarter, there is also a lot of information from the developers available, starting from the planning phase till the full release.
Advertising the use of torrents on the official forum is just straight up wrong and I would not be surprised if the thread gets locked down.
